Improvement in cultivators



UNI-TED STATES PATENT OEEICE.

JOSEPH WILHELM, oF MUsoAfTINE, IOWA.-

IMPROV-EM ENT IN CULTIVAT RS.

Specification forming part of Letters Patent No. 4 l,562, dated February 9, 1864.

To all whom it 'may concern.:

'-to the accompanying drawings, forming a part of this specification, iu which- Figure l represents a. longitudinal vertical section of my invention,the line-nt` @v ,Fig 2, in-

dicating the plane of section'. Fig. 2 is aplan or top view of the same."

Similar letters ot'refercnce in both views indicate corresponding parts.

' This invention relates to an improvement in that class ot' cultivators which are constructed with two wings hinged .together and arranged so that they can he expanded or contracted at pleasure, according to the width ot' the i'urrows through which the cultivator is `intended to ass. v p The nature of thisinvention and its particular advantages will be readily understood from the following description. A y

A A represent two beams, made of wood or any other suitable material,and connected together at their front ends by means of arms a a! and a pivot, b, in such a manner that they can be expanded or contracted at pleasure. The arms a c' are rigidly attached to the beams A A', and the pivot b, which connects said arms, also forms the fulcrum-piu of the clevis c'. Bythis arrangement said clevis will retain itsposition on thecenter line whether the beams are contracted or expanded, and a sgrain ex,-v

erted on the same will be transmitted'u iforn'ily to both beams. Eachof the beamsA A' has rigidly attached Vto its outside a secondary beam, A* A, and the standards B B* and plows C C* are secured to the beam AA, and the standards B B'f and plows C' C* to the beam AA*, in the ordinary manner,the standards being secured in their position by suitable braces, d. Said secondary beams are arranged in such relation to themain beams that the distance between the plows C-and 0*, or between the plows C C'*,is equal to the width of the furrows through which the cultivator passes. The position of the beams A Al in relation to each others determined by two arms, D D', Vwhich are hinged by means of pivots e e' to the secondary beams A AH, and pass through slots in the main beams. These arms are provided with a series of holes, f, and they areretained in the desired position by a springcatch, g, the point of which drops into corresponding holes in both arms. Said springcatch is connected to one ot' the beams in such a position that it can be conveniently reached by the operator guiding the plow. By expanding or contracting the arms the cultivator is set to correspond to the distance of the rows, and in passing through between the rows it is guided bythe handles E in the usual manner.

This cultivator is very simple in its construction, .it is easily operated, and all its parts are so arranged that they are notliable to get out of order.

What I claim as new, and desire to secure by Letters Patent, is-

1. Having the arms a a jointed at the center and combined with the clevis c in the manner and for the purpose herein shown and described.

2. The arrangement of the spring-latch g with the beam A and arms D D in the manner and for the purpose herein shown and described. v

JOSEPH WILHELM.

Witnesses z ISAAC GooVEn, J. OPPENHEIMER. 

